I like the RAD Maxim 38 peep with Micro Tubing, tried various other stuff, Fletcher, No Peep, String Splitter, etc. Even top quality strings will wear over time and the peep will turn slightly. Not a chance i'm willing to take. The Micro Tubing is not 'loud' as some complain about standardpeep tubing and very little fps is lost at least not on my setup. If your shooting a high speed rig it maybe be an issue. Many complain about breakage of the rubber tubing. If you use the newer silicon stuff and change every couple years I don't see that happening. At least it hasn't happened to me and i've been bowhunting for over 20 years.